Definitions
from The Century Dictionary.
- noun A bar of iron upon which a round core is struck up.
Etymologies
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Examples
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For charging the retort, the water-tank is placed on a trolly; and standing upright on a stool inside the tank is placed the piña, or conical mass of silver amalgam, which is held together by being built up on a core-bar fitted with a series of horizontal disks.
Scientific American Supplement, No. 458, October 11, 1884 Various
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